1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
module GHC.Unit.Module.ModGuts
( ModGuts (..)
, CgGuts (..)
)
where
import GHC.Prelude
import GHC.ByteCode.Types
import GHC.ForeignSrcLang
import GHC.Hs
import GHC.Unit
import GHC.Unit.Module.Deps
import GHC.Unit.Module.Warnings
import GHC.Core.InstEnv ( InstEnv, ClsInst )
import GHC.Core.FamInstEnv
import GHC.Core ( CoreProgram, CoreRule )
import GHC.Core.TyCon
import GHC.Core.PatSyn
import GHC.Linker.Types ( SptEntry(..) )
import GHC.Types.Annotations ( Annotation )
import GHC.Types.Avail
import GHC.Types.CompleteMatch
import GHC.Types.Fixity.Env
import GHC.Types.ForeignStubs
import GHC.Types.HpcInfo
import GHC.Types.Name.Reader
import GHC.Types.SafeHaskell
import GHC.Types.SourceFile ( HscSource(..) )
import GHC.Types.SrcLoc
-- | A ModGuts is carried through the compiler, accumulating stuff as it goes
-- There is only one ModGuts at any time, the one for the module
-- being compiled right now. Once it is compiled, a 'ModIface' and
-- 'ModDetails' are extracted and the ModGuts is discarded.
data ModGuts
= ModGuts {
mg_module :: !Module, -- ^ Module being compiled
mg_hsc_src :: HscSource, -- ^ Whether it's an hs-boot module
mg_loc :: SrcSpan, -- ^ For error messages from inner passes
mg_exports :: ![AvailInfo], -- ^ What it exports
mg_deps :: !Dependencies, -- ^ What it depends on, directly or
-- otherwise
mg_usages :: ![Usage], -- ^ What was used? Used for interfaces.
mg_used_th :: !Bool, -- ^ Did we run a TH splice?
mg_rdr_env :: !GlobalRdrEnv, -- ^ Top-level lexical environment
-- These fields all describe the things **declared in this module**
mg_fix_env :: !FixityEnv, -- ^ Fixities declared in this module.
-- Used for creating interface files.
mg_tcs :: ![TyCon], -- ^ TyCons declared in this module
-- (includes TyCons for classes)
mg_insts :: ![ClsInst], -- ^ Class instances declared in this module
mg_fam_insts :: ![FamInst],
-- ^ Family instances declared in this module
mg_patsyns :: ![PatSyn], -- ^ Pattern synonyms declared in this module
mg_rules :: ![CoreRule], -- ^ Before the core pipeline starts, contains
-- See Note [Overall plumbing for rules] in "GHC.Core.Rules"
mg_binds :: !CoreProgram, -- ^ Bindings for this module
mg_foreign :: !ForeignStubs, -- ^ Foreign exports declared in this module
mg_foreign_files :: ![(ForeignSrcLang, FilePath)],
-- ^ Files to be compiled with the C compiler
mg_warns :: !Warnings, -- ^ Warnings declared in the module
mg_anns :: [Annotation], -- ^ Annotations declared in this module
mg_complete_matches :: [CompleteMatch], -- ^ Complete Matches
mg_hpc_info :: !HpcInfo, -- ^ Coverage tick boxes in the module
mg_modBreaks :: !(Maybe ModBreaks), -- ^ Breakpoints for the module
-- The next two fields are unusual, because they give instance
-- environments for *all* modules in the home package, including
-- this module, rather than for *just* this module.
-- Reason: when looking up an instance we don't want to have to
-- look at each module in the home package in turn
mg_inst_env :: InstEnv, -- ^ Class instance environment for
-- /home-package/ modules (including this
-- one); c.f. 'tcg_inst_env'
mg_fam_inst_env :: FamInstEnv, -- ^ Type-family instance environment for
-- /home-package/ modules (including this
-- one); c.f. 'tcg_fam_inst_env'
mg_safe_haskell :: SafeHaskellMode, -- ^ Safe Haskell mode
mg_trust_pkg :: Bool, -- ^ Do we need to trust our
-- own package for Safe Haskell?
-- See Note [Trust Own Package]
-- in "GHC.Rename.Names"
mg_doc_hdr :: !(Maybe HsDocString), -- ^ Module header.
mg_decl_docs :: !DeclDocMap, -- ^ Docs on declarations.
mg_arg_docs :: !ArgDocMap -- ^ Docs on arguments.
}
-- The ModGuts takes on several slightly different forms:
--
-- After simplification, the following fields change slightly:
-- mg_rules Orphan rules only (local ones now attached to binds)
-- mg_binds With rules attached
---------------------------------------------------------
-- The Tidy pass forks the information about this module:
-- * one lot goes to interface file generation (ModIface)
-- and later compilations (ModDetails)
-- * the other lot goes to code generation (CgGuts)
-- | A restricted form of 'ModGuts' for code generation purposes
data CgGuts
= CgGuts {
cg_module :: !Module,
-- ^ Module being compiled
cg_tycons :: [TyCon],
-- ^ Algebraic data types (including ones that started
-- life as classes); generate constructors and info
-- tables. Includes newtypes, just for the benefit of
-- External Core
cg_binds :: CoreProgram,
-- ^ The tidied main bindings, including
-- previously-implicit bindings for record and class
-- selectors, and data constructor wrappers. But *not*
-- data constructor workers; reason: we regard them
-- as part of the code-gen of tycons
cg_foreign :: !ForeignStubs, -- ^ Foreign export stubs
cg_foreign_files :: ![(ForeignSrcLang, FilePath)],
cg_dep_pkgs :: ![UnitId], -- ^ Dependent packages, used to
-- generate #includes for C code gen
cg_hpc_info :: !HpcInfo, -- ^ Program coverage tick box information
cg_modBreaks :: !(Maybe ModBreaks), -- ^ Module breakpoints
cg_spt_entries :: [SptEntry]
-- ^ Static pointer table entries for static forms defined in
-- the module.
-- See Note [Grand plan for static forms] in "GHC.Iface.Tidy.StaticPtrTable"
}
|
